发明申请
- 专利标题： LIGHT SOURCE DEVICE, METHOD FOR MANUFACTURING THE SAME AND FILAMENT
- 专利标题（中）： 光源装置，其制造方法和薄膜
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申请号： US14033334申请日： 2013-09-20
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公开(公告)号： US20140084785A1公开(公告)日： 2014-03-27
- 发明人: Takahiro MATSUMOTO , Shigemi SUZUKI
- 申请人： STANLEY ELECTRIC CO., LTD.
- 申请人地址： JP Tokyo
- 专利权人： STANLEY ELECTRIC CO., LTD.
- 当前专利权人： STANLEY ELECTRIC CO., LTD.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2012-208735 20120921
- 主分类号： H01K1/10
- IPC分类号： H01K1/10 ; H01K5/00 ; H01K3/02
摘要：
A filament showing high radiation characteristics and hardly suffering from disconnection and film separation is provided by using a high melting point metal compound such as tantalum carbide. As the filament, a filament comprising a tungsten base material 30, a tantalum layer 31 coating the tungsten base material 30, and a tantalum carbide layer 32 coating the tantalum layer 31 is used. High adhesion is obtained at the interface of the layers of tungsten and tantalum by utilizing high adhesion of tungsten and tantalum.
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